Cooler in diesel line. Why?
I ran over a brick yesterday and whilst I was checking underneath (no damage luckily) I noticed a smal cooler (like an oil cooler) in the diesel return line, near the tank - factory fit. Never noticed it before. Why is it there. Does the diesel get that hot in the fuel rail that it has to be cooled before going bask into the tank??
If you can't fix it with a hammer, you've got yourself an electrical problem!